Tianocore Edk2 vulnerabilities

CVE-2019-0160 [CRITICAL] CVE-2019-0160: Buffer overflow in system firmware for EDK II may allow unauthenticated user to potentially enable escalation of privilege and/or denial of service vi Buffer overflow in system firmware for EDK II may allow unauthenticated user to potentially enable escalation of privilege and/or denial of service via network access.

CVE-2023-45230 [HIGH] CWE-119 CVE-2023-45230: EDK2's Network Package is susceptible to a buffer overflow vulnerability via a long server ID option EDK2's Network Package is susceptible to a buffer overflow vulnerability via a long server ID option in DHCPv6 client. This vulnerability can be exploited by an attacker to gain unauthorized access and potentially lead to a loss of Confidentiality, Integrity and/or Availability.

CVE-2023-45235 [HIGH] CWE-119 CVE-2023-45235: EDK2's Network Package is susceptible to a buffer overflow vulnerability when handling Server I EDK2's Network Package is susceptible to a buffer overflow vulnerability when handling Server ID option from a DHCPv6 proxy Advertise message. This vulnerability can be exploited by an attacker to gain unauthorized access and potentially lead to a loss of Confidentiality, Integrity and/or Availability.

CVE-2023-45234 [HIGH] CWE-119 CVE-2023-45234: EDK2's Network Package is susceptible to a buffer overflow vulnerability when processing DNS Servers EDK2's Network Package is susceptible to a buffer overflow vulnerability when processing DNS Servers option from a DHCPv6 Advertise message. This vulnerability can be exploited by an attacker to gain unauthorized access and potentially lead to a loss of Confidentiality, Integrity and/or Availability.

CVE-2025-2296 [HIGH] CWE-20 CVE-2025-2296: EDK2 contains a vulnerability in BIOS where an attacker may cause “ Improper Input Validation” by lo EDK2 contains a vulnerability in BIOS where an attacker may cause “ Improper Input Validation” by local access. Successful exploitation of this vulnerability could alter control flow in unexpected ways, potentially allowing arbitrary command execution and impacting Confidentiality, Integrity, and Availability.

CVE-2018-12178 [CRITICAL] edk2 vulnerabilities edk2 vulnerabilities A buffer overflow was discovered in the network stack. An unprivileged user could potentially enable escalation of privilege and/or denial of service. This issue was already fixed in a previous release for 18.04 LTS and 19.10. (CVE-2018-12178) A buffer overflow was discovered in BlockIo service. An unauthenticated user could potentially enable escalation of privilege, information disclosure and/or denial of service. This issue

CVE-2025-2486 [HIGH] CVE-2025-2486: The Ubuntu edk2 UEFI firmware packages accidentally allowed the UEFI Shell to be accessed in Secure The Ubuntu edk2 UEFI firmware packages accidentally allowed the UEFI Shell to be accessed in Secure Boot environments, possibly allowing bypass of Secure Boot constraints. Versions 2024.05-2ubuntu0.3 and 2024.02-2ubuntu0.3 disable the Shell. Some previous versions inserted a secure-boot-based decision to continue running inside the Shell itself, which is believe

CVE-2018-12180 [HIGH] CVE-2018-12180: Buffer overflow in BlockIo service for EDK II may allow an unauthenticated user to potentially enable escalation of privilege, information disclosure Buffer overflow in BlockIo service for EDK II may allow an unauthenticated user to potentially enable escalation of privilege, information disclosure and/or denial of service via network access.

CVE-2023-45232 [HIGH] CWE-835 CVE-2023-45232: EDK2's Network Package is susceptible to an infinite loop vulnerability when parsing unknown options EDK2's Network Package is susceptible to an infinite loop vulnerability when parsing unknown options in the Destination Options header of IPv6. This vulnerability can be exploited by an attacker to gain unauthorized access and potentially lead to a loss of Availability.

CVE-2023-45233 [HIGH] CWE-835 CVE-2023-45233: EDK2's Network Package is susceptible to an infinite lop vulnerability when parsing a PadN option in EDK2's Network Package is susceptible to an infinite lop vulnerability when parsing a PadN option in the Destination Options header of IPv6. This vulnerability can be exploited by an attacker to gain unauthorized access and potentially lead to a loss of Availability.

CVE-2021-38575 [HIGH] CWE-124 CVE-2021-38575: NetworkPkg/IScsiDxe has remotely exploitable buffer overflows. NetworkPkg/IScsiDxe has remotely exploitable buffer overflows.

CVE-2023-45236 [HIGH] CWE-200 CVE-2023-45236: EDK2's Network Package is susceptible to a predictable TCP Initial Sequence Number. This vulnerabil EDK2's Network Package is susceptible to a predictable TCP Initial Sequence Number. This vulnerability can be exploited by an attacker to gain unauthorized access and potentially lead to a loss of Confidentiality.

CVE-2023-45237 [HIGH] CWE-338 CVE-2023-45237: EDK2's Network Package is susceptible to a predictable TCP Initial Sequence Number. This vulnerabil EDK2's Network Package is susceptible to a predictable TCP Initial Sequence Number. This vulnerability can be exploited by an attacker to gain unauthorized access and potentially lead to a loss of Confidentiality.

CVE-2021-38578 [CRITICAL] CWE-124 CVE-2021-38578: Existing CommBuffer checks in SmmEntryPoint will not catch underflow when computing BufferSize. Existing CommBuffer checks in SmmEntryPoint will not catch underflow when computing BufferSize.

CVE-2022-36763 [HIGH] CWE-122 CVE-2022-36763: EDK2 is susceptible to a vulnerability in the Tcg2MeasureGptTable() function, allowing a user to tri EDK2 is susceptible to a vulnerability in the Tcg2MeasureGptTable() function, allowing a user to trigger a heap buffer overflow via a local network. Successful exploitation of this vulnerability may result in a compromise of confidentiality, integrity, and/or availability.

CVE-2022-36764 [HIGH] CWE-122 CVE-2022-36764: EDK2 is susceptible to a vulnerability in the Tcg2MeasurePeImage() function, allowing a user to trig EDK2 is susceptible to a vulnerability in the Tcg2MeasurePeImage() function, allowing a user to trigger a heap buffer overflow via a local network. Successful exploitation of this vulnerability may result in a compromise of confidentiality, integrity, and/or availability.

CVE-2022-36765 [HIGH] CWE-680 CVE-2022-36765: EDK2 is susceptible to a vulnerability in the CreateHob() function, allowing a user to trigger a int EDK2 is susceptible to a vulnerability in the CreateHob() function, allowing a user to trigger a integer overflow to buffer overflow via a local network. Successful exploitation of this vulnerability may result in a compromise of confidentiality, integrity, and/or availability.

CVE-2019-14559 [HIGH] CVE-2019-14559: Uncontrolled resource consumption in EDK II may allow an unauthenticated user to potentially enable denial of service via network access Uncontrolled resource consumption in EDK II may allow an unauthenticated user to potentially enable denial of service via network access.

CVE-2019-14586 [HIGH] CVE-2019-14586: Use after free vulnerability in EDK II may allow an authenticated user to potentially enable escalation of privilege, information disclosure and/or de Use after free vulnerability in EDK II may allow an authenticated user to potentially enable escalation of privilege, information disclosure and/or denial of service via adjacent access.

CVE-2021-38576 [HIGH] CVE-2021-38576: A BIOS bug in firmware for a particular PC model leaves the Platform authorization value empty. This A BIOS bug in firmware for a particular PC model leaves the Platform authorization value empty. This can be used to permanently brick the TPM in multiple ways, as well as to non-permanently DoS the system.